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Lobosea: Testacealobosia: Arcellinida: Arcellidae

Arcella discoides
Ehrenberg, 1871

Genus: Test variable, chitinoid; binucleate (Illustrated Guide, 1985).
Group: Discoides (Test flattened; height < 1/2 greatest diam.)

Species: Diam. 90-150 μm, height 25-30 μm; pseudostome, round, 30-40 μm; with or without ring of pores (Illustrated Guide, 1985).
->> Description at WPRNO Google Image Search
Arcella
A. discoides
test 132 μm
Uruguay, 1999
Arcella discoides
A. discoides
test 120 μm
Omine-numa
Tsukiyono
Gunma, 2003
Arcella
A. discoides
test 110 μm
Uruguay, 1999
Arcella
A. discoides
test 165 μm
Obihiro-Hasshonochi
Obihiro
Hokkaido, 2005
Arcella
A. discoides
test 95 μm
Uruguay, 1999
Arcella
A. discoides
test 83 μm
Japan, 199?


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Arcella discoides
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